Revolution-counter.



' c. KORTE.

REVOLUTION COUNTER.

APPLIGATION FILED AUG. 31, 1911;

1,077,61 1 Patented Nov. 4, 1913.

2' SHEETS-SHEET l.

G. KORTE.

REVOLUTION COUNTER. APPLICATION FILED AUG.31, 1911.

1,077,61 1 Patented N0v.4, 1913.

2 SHEETSSHEET 2.

m W W- WM %-i-) UNITED sir-Arms PATENT oFFIoE,

i CHRISTIAN KOBTE, OF "LEEDS, ENGLAND, ASSIGN'OR 0F ONE-THIRD TO SAMUELDENISON AND ONE-THIRD TO GEORGE KERRY DENISON, BOTH Q1 LEEDS,

ENGLAND.

Specification of new rat-m. a plicatio filed August :1, 911. Serial in.646,989.

nnvonua'xon-coun'rnn.

Patented Nov. 4, 1913.

rotary s afts or other revolving bodies and particularly to that type orclass of same wherein the timing and counting mechanisms are desired tobe put into action simultaneously; and the object of my said inventionis the production of devices that may be put into action only by therotary motion of the shaft or body, the revolutions of which have to becounted and registered and that in such a manner as will insure moreeffectively the said simultaneous ac tions, while said devices are ofthe novel format1on, c0nstruct1on and arrangement hereinafter describedfor effecting said.

counting and timing functions without relying upon any differences orvariations between the movement of one part and those -of another partfor this purpose. In other words the revolution counter is drivenpositively while the clock or timing mechanism derives its motion fromthe positively driven art throu h or by friction gear. and the ands forindicating the number of complete revolutions and the time in which sameare carried out are separately carried and actuated by their res I ctivemechanisms and do not rely on any ,lfi'erence or variation that mayexist in the. movements of the counting mechanism as compared with thoseof the timing mechanism for effecting their said respective indications.

In the accompanying sheets of drawings which are illustrative of thisinvention Figure 1 is a front elevation or face view of the completeapparatus. Fig. 2 is a front elevation (with t e dial removed) of aportion of said apparatus to show certain of the parts hereinafterdescribed. Fig. 3 is a vertical section of the partsshown by Fig. 1 asseen in the direction indicated by the arrow a. 4 is a front sectionaleleva- 5 and 6 are front and sectional side elevations showin theformation of a certain part hereinafier described. 1*" 7 is a sectionalelevation of a. plate w eel used in connection with the arts shown byFigs. 5 and 6. Fig. 8 is arawing in detail of a key or detachable parthereinafter de scribed.- 1

A indicates the outer casing of the apparatus, B the dial or faceindicating the number of revolutions and C the dial or face showing theseconds hand of the-clock. i In accordance with my said invention Iarrange a pair 0 worm wheels 2 and 2 to be actuated by a worm 350 thateach worm wheel 2 and 2 may rotate its respective ratchet wheel 4 and 4arranged in conjunction with it, while said ratchet wheels 4 and 4 haveother wheels 5, 5 respectively Socured to them so that these wheels 5,may both gear with. another s u'rfwheel 6, by which arrangement'of mecanism the worm 3 whether rotating in one direction or in tion to thegearin wheel 6 in one and the same direction, said worm wheels 2 and 2'in conjunction with their ratchet wheels 4 and 4 which are actuatedbythe fatchets 7 and 7 are so arranged as to attain this object since asshown by 4 if eitherof the worm wheels moves in such direction as tocarry its ratchet 7 or 7 with it without transmitting motion to itsrespective ratchet wheel then no motion will be transmitted either tosaid wheel or to the wheel except through or by the other worm wheel andits wheel. The worm 3 is mounted or formed upon a spindle 8 the outerend 8 of which is made to take into a circular or other indentation madein the center of the axis in dioated so that such shaft will transmitmotion to the spindle 8. Or said outer end 8 may have a sleeve securedupon it to fit or take over the shaft whose revolutions have to beindicated in manner common and well known. On this spindle 8 is securedaflange 9 which takes over anti-friction balls 9 runratchet which isrotating in the proper dis. rection to actuate its corresponding ratchetany shaft whose revolutions have to be in.

tion showing the interior mechanism. Figs.

the other direction will always transmit inoning upon a race formedonthe casin A as shown by Fig. 3, this flange taking or withstanding anyof the pressure or thrust upon said spindle 8 as will be understood.

The spur wheel 6 is of hollow or box shape as illustrated in detail byFig. 6, so that within the hollow part of said wheel a spring 10 ismounted to take over a square part of the spindle 11 which is thespindle upon which the large hand 12 is mounted. This spring is held bythe pin 13 taking through said spindle 11 in order that the resilienceof the spring 10 may act upon the wheel 6 and force it against aprepared plate 14 (of the character hereinafter explained) mountedbetween it and the box or recessed toothed disk 15 for the purposehereinafter described. As the spindle 8 revolves it transmits motion tothe wheel 6 at a speed in unison with it and said wheel 6 by contactingwith'the spring 10 which is upon the square part of axle 11 transmitsits motion to said axle 11 therefore the hand 12 as it rotates over thedial B will indicate the number of revolutions transmitted to and by thespindle 8. On the axle 11 is mounted the wheel 31 which gears with thewheel 32 carrying the pinion 33 and this pinion 33 meshes with the wheel34 so that on the hub of this latter may be mounted the hand 35. Thewheels 31 to 34 have'such relative numbers of teeth that the hand 12rotates ten times around the dial while the hand 35 moves only the spacebetween two of the indicating marks on said dial.

As means for indicating the time occupied for a given number ofrevolutions of the wheel 6, this wheel 6 is arranged to transmit motionto timing or clock mechanism through the medium of the friction disk 15as hereinafter described. The teeth on the disk 15 gear with teeth inthe wheel 16 upon the spindle of which ismounted the wheel 17 gearingwith the pinion 18 secured to the spindle of the wheel 19 which wheel 19through the pinion 20 transmits motion to the pallet wheel 21 which isgoverned by the usual anchor devices 22 and balance wheel 23, thus bysaid pallet wheel and its mechanism the rotary motions of the spindle 19are governed so that according to the adjusting of said governingmechanism each rotation of the spindle will be performed in a given or aknown time, hence by placing on the spindle 19 the hand 24 (see'Figs. 1and 3) the time in seconds or otherwise may be indicated by the figureson the dial C. From this it ,will be seen that the number of revolutionsindicated by the hands 12 and 35 (one indicating tens and the otherhundreds of revolutions on the dial B) as having been performed in thetime indicated by the clock mechanism as by its hand 24, said number ofrevolutions per minute (or in any other given time as may be foundappropriate or desirable) is clearly shown without necessitating theemployment of any other timing mechanism in conjunction with thecounting devices.

The frictional devices in order to keep same under constant coefficientof friction consist as hereinbefore described of the disk 15 and thesurface of the wheel 6 between which are interposed any suitablesubstance as plumbago, which may be rubbed on a piece of cardboard 14,(see Figs. 3 and 6) or the like, or French chalk or like substances maybe placed on said cardboard. 14-. so that the actions of thesefrictional surfaces as caused through the force of the spring 10 will bekept constant and give the necessary power to drive the clock gearing asabove ex plained, with the result that provided such frictional devicestend to drive the clock gearing too quickly then under the actions ofthe timing or clock mechanism said frictional devices slip, so that thegoverning of the whole apparatus as to time is efficiently performed.The central shaft 11 has a square opening made at 11 to receive thesquare end of the key 26, see Fig. 8, in order that the user may be ableto bring the indicators or hands back to zero'after use. The

key 26 which is used for this purpose is inits normal position placed inthe lower end of the casing as shown by Figs. 1 and 3, where it is heldby' the spring actuated pin 27 so that its square end may enter thesquare end of the pinion 28 which meshes wit-h crown teeth 29 formed onthe inner surface ofthe dial C. Thus said key 26 may be employed forbringing the hands 12 and 35 to zero as well as for moving. the dial Cto bring its zero point opposite the indicating end of the hand 24:.

' To insure the starting of the clock mechanism immediately the spindle8 begins to rotate said spindle 8 may be made to have a slightlongitudinal movement by leaving its collar 9 clear of the end casin sothat a spring may normally force sai spindle 8 against such outer end ofthe casin at which time an extension or coupling rom said spindle 8 willmove into engagementwith the' wheel 23 and prevent its further rotation.On the spindle 8 being pressed into contact with the rotar shaft itsengagement with the wheel 23 wil be disconnected and the springoperating said wheel 23 will immediately start said wheel into motion.

,Such being the nature and object of my invention, what I claim is Aninstrument of the character described having a spindle provided with afree end to be pressed against a rotating member to cause said s indleto be rotated by said member, said spindle having a worm, two wormwheels meshing with said worm, ratchet wheels carried by said wormwheels, spur wheels carried by ratchets engaging with said ratchetwheels, a hollow toothed wheel, and connections for actuating the latterfrom a shaft on which said wheel is mounted, said said friction toothedwheel. 10 shaft having an angular portion, a spring In testimony whereofI have afiixed my fitting said angular portion of the shaft andsignature in the presence of two witnesses. located in said hollowtoothed wheel, revolu- CHRISTIAN KORTE.

tion indicating hands actuated by said shaft, Witnesses: a. frictiondisk adapted to be driven by the SAMUEL HEY, hollow toothed wheel, and atime indicator CHARLEs E. TAYLOR.

